Commit | Line | Data |
---|---|---|
c66ac9db NB |
1 | /******************************************************************************* |
2 | * Filename: target_core_fabric_configfs.c | |
3 | * | |
4 | * This file contains generic fabric module configfs infrastructure for | |
5 | * TCM v4.x code | |
6 | * | |
12d23384 NB |
7 | * Copyright (c) 2010,2011 Rising Tide Systems |
8 | * Copyright (c) 2010,2011 Linux-iSCSI.org | |
c66ac9db | 9 | * |
12d23384 | 10 | * Copyright (c) Nicholas A. Bellinger <nab@linux-iscsi.org> |
c66ac9db NB |
11 | * |
12 | * This program is free software; you can redistribute it and/or modify | |
13 | * it under the terms of the GNU General Public License as published by | |
14 | * the Free Software Foundation; either version 2 of the License, or | |
15 | * (at your option) any later version. | |
16 | * | |
17 | * This program is distributed in the hope that it will be useful, | |
18 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
19 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
20 | * GNU General Public License for more details. | |
21 | ****************************************************************************/ | |
22 | ||
23 | #include <linux/module.h> | |
24 | #include <linux/moduleparam.h> | |
c66ac9db NB |
25 | #include <generated/utsrelease.h> |
26 | #include <linux/utsname.h> | |
27 | #include <linux/init.h> | |
28 | #include <linux/fs.h> | |
29 | #include <linux/namei.h> | |
30 | #include <linux/slab.h> | |
31 | #include <linux/types.h> | |
32 | #include <linux/delay.h> | |
33 | #include <linux/unistd.h> | |
34 | #include <linux/string.h> | |
35 | #include <linux/syscalls.h> | |
36 | #include <linux/configfs.h> | |
37 | ||
38 | #include <target/target_core_base.h> | |
39 | #include <target/target_core_device.h> | |
40 | #include <target/target_core_tpg.h> | |
41 | #include <target/target_core_transport.h> | |
42 | #include <target/target_core_fabric_ops.h> | |
43 | #include <target/target_core_fabric_configfs.h> | |
44 | #include <target/target_core_configfs.h> | |
45 | #include <target/configfs_macros.h> | |
46 | ||
e26d99ae | 47 | #include "target_core_internal.h" |
c66ac9db | 48 | #include "target_core_alua.h" |
c66ac9db NB |
49 | #include "target_core_pr.h" |
50 | ||
51 | #define TF_CIT_SETUP(_name, _item_ops, _group_ops, _attrs) \ | |
52 | static void target_fabric_setup_##_name##_cit(struct target_fabric_configfs *tf) \ | |
53 | { \ | |
54 | struct target_fabric_configfs_template *tfc = &tf->tf_cit_tmpl; \ | |
55 | struct config_item_type *cit = &tfc->tfc_##_name##_cit; \ | |
56 | \ | |
57 | cit->ct_item_ops = _item_ops; \ | |
58 | cit->ct_group_ops = _group_ops; \ | |
59 | cit->ct_attrs = _attrs; \ | |
60 | cit->ct_owner = tf->tf_module; \ | |
6708bb27 | 61 | pr_debug("Setup generic %s\n", __stringify(_name)); \ |
c66ac9db NB |
62 | } |
63 | ||
64 | /* Start of tfc_tpg_mappedlun_cit */ | |
65 | ||
66 | static int target_fabric_mappedlun_link( | |
67 | struct config_item *lun_acl_ci, | |
68 | struct config_item *lun_ci) | |
69 | { | |
70 | struct se_dev_entry *deve; | |
71 | struct se_lun *lun = container_of(to_config_group(lun_ci), | |
72 | struct se_lun, lun_group); | |
73 | struct se_lun_acl *lacl = container_of(to_config_group(lun_acl_ci), | |
74 | struct se_lun_acl, se_lun_group); | |
75 | struct se_portal_group *se_tpg; | |
76 | struct config_item *nacl_ci, *tpg_ci, *tpg_ci_s, *wwn_ci, *wwn_ci_s; | |
77 | int ret = 0, lun_access; | |
78 | /* | |
79 | * Ensure that the source port exists | |
80 | */ | |
6708bb27 AG |
81 | if (!lun->lun_sep || !lun->lun_sep->sep_tpg) { |
82 | pr_err("Source se_lun->lun_sep or lun->lun_sep->sep" | |
c66ac9db NB |
83 | "_tpg does not exist\n"); |
84 | return -EINVAL; | |
85 | } | |
86 | se_tpg = lun->lun_sep->sep_tpg; | |
87 | ||
88 | nacl_ci = &lun_acl_ci->ci_parent->ci_group->cg_item; | |
89 | tpg_ci = &nacl_ci->ci_group->cg_item; | |
90 | wwn_ci = &tpg_ci->ci_group->cg_item; | |
91 | tpg_ci_s = &lun_ci->ci_parent->ci_group->cg_item; | |
92 | wwn_ci_s = &tpg_ci_s->ci_group->cg_item; | |
93 | /* | |
94 | * Make sure the SymLink is going to the same $FABRIC/$WWN/tpgt_$TPGT | |
95 | */ | |
96 | if (strcmp(config_item_name(wwn_ci), config_item_name(wwn_ci_s))) { | |
6708bb27 | 97 | pr_err("Illegal Initiator ACL SymLink outside of %s\n", |
c66ac9db NB |
98 | config_item_name(wwn_ci)); |
99 | return -EINVAL; | |
100 | } | |
101 | if (strcmp(config_item_name(tpg_ci), config_item_name(tpg_ci_s))) { | |
6708bb27 | 102 | pr_err("Illegal Initiator ACL Symlink outside of %s" |
c66ac9db NB |
103 | " TPGT: %s\n", config_item_name(wwn_ci), |
104 | config_item_name(tpg_ci)); | |
105 | return -EINVAL; | |
106 | } | |
107 | /* | |
108 | * If this struct se_node_acl was dynamically generated with | |
109 | * tpg_1/attrib/generate_node_acls=1, use the existing deve->lun_flags, | |
110 | * which be will write protected (READ-ONLY) when | |
111 | * tpg_1/attrib/demo_mode_write_protect=1 | |
112 | */ | |
113 | spin_lock_irq(&lacl->se_lun_nacl->device_list_lock); | |
114 | deve = &lacl->se_lun_nacl->device_list[lacl->mapped_lun]; | |
115 | if (deve->lun_flags & TRANSPORT_LUNFLAGS_INITIATOR_ACCESS) | |
116 | lun_access = deve->lun_flags; | |
117 | else | |
118 | lun_access = | |
e3d6f909 | 119 | (se_tpg->se_tpg_tfo->tpg_check_prod_mode_write_protect( |
c66ac9db NB |
120 | se_tpg)) ? TRANSPORT_LUNFLAGS_READ_ONLY : |
121 | TRANSPORT_LUNFLAGS_READ_WRITE; | |
122 | spin_unlock_irq(&lacl->se_lun_nacl->device_list_lock); | |
123 | /* | |
124 | * Determine the actual mapped LUN value user wants.. | |
125 | * | |
126 | * This value is what the SCSI Initiator actually sees the | |
127 | * iscsi/$IQN/$TPGT/lun/lun_* as on their SCSI Initiator Ports. | |
128 | */ | |
129 | ret = core_dev_add_initiator_node_lun_acl(se_tpg, lacl, | |
130 | lun->unpacked_lun, lun_access); | |
131 | ||
132 | return (ret < 0) ? -EINVAL : 0; | |
133 | } | |
134 | ||
135 | static int target_fabric_mappedlun_unlink( | |
136 | struct config_item *lun_acl_ci, | |
137 | struct config_item *lun_ci) | |
138 | { | |
139 | struct se_lun *lun; | |
140 | struct se_lun_acl *lacl = container_of(to_config_group(lun_acl_ci), | |
141 | struct se_lun_acl, se_lun_group); | |
142 | struct se_node_acl *nacl = lacl->se_lun_nacl; | |
143 | struct se_dev_entry *deve = &nacl->device_list[lacl->mapped_lun]; | |
144 | struct se_portal_group *se_tpg; | |
145 | /* | |
146 | * Determine if the underlying MappedLUN has already been released.. | |
147 | */ | |
6708bb27 | 148 | if (!deve->se_lun) |
c66ac9db NB |
149 | return 0; |
150 | ||
151 | lun = container_of(to_config_group(lun_ci), struct se_lun, lun_group); | |
152 | se_tpg = lun->lun_sep->sep_tpg; | |
153 | ||
154 | core_dev_del_initiator_node_lun_acl(se_tpg, lun, lacl); | |
155 | return 0; | |
156 | } | |
157 | ||
158 | CONFIGFS_EATTR_STRUCT(target_fabric_mappedlun, se_lun_acl); | |
159 | #define TCM_MAPPEDLUN_ATTR(_name, _mode) \ | |
160 | static struct target_fabric_mappedlun_attribute target_fabric_mappedlun_##_name = \ | |
161 | __CONFIGFS_EATTR(_name, _mode, \ | |
162 | target_fabric_mappedlun_show_##_name, \ | |
163 | target_fabric_mappedlun_store_##_name); | |
164 | ||
165 | static ssize_t target_fabric_mappedlun_show_write_protect( | |
166 | struct se_lun_acl *lacl, | |
167 | char *page) | |
168 | { | |
169 | struct se_node_acl *se_nacl = lacl->se_lun_nacl; | |
170 | struct se_dev_entry *deve; | |
171 | ssize_t len; | |
172 | ||
173 | spin_lock_irq(&se_nacl->device_list_lock); | |
174 | deve = &se_nacl->device_list[lacl->mapped_lun]; | |
175 | len = sprintf(page, "%d\n", | |
176 | (deve->lun_flags & TRANSPORT_LUNFLAGS_READ_ONLY) ? | |
177 | 1 : 0); | |
178 | spin_unlock_irq(&se_nacl->device_list_lock); | |
179 | ||
180 | return len; | |
181 | } | |
182 | ||
183 | static ssize_t target_fabric_mappedlun_store_write_protect( | |
184 | struct se_lun_acl *lacl, | |
185 | const char *page, | |
186 | size_t count) | |
187 | { | |
188 | struct se_node_acl *se_nacl = lacl->se_lun_nacl; | |
189 | struct se_portal_group *se_tpg = se_nacl->se_tpg; | |
190 | unsigned long op; | |
191 | ||
192 | if (strict_strtoul(page, 0, &op)) | |
193 | return -EINVAL; | |
194 | ||
195 | if ((op != 1) && (op != 0)) | |
196 | return -EINVAL; | |
197 | ||
198 | core_update_device_list_access(lacl->mapped_lun, (op) ? | |
199 | TRANSPORT_LUNFLAGS_READ_ONLY : | |
200 | TRANSPORT_LUNFLAGS_READ_WRITE, | |
201 | lacl->se_lun_nacl); | |
202 | ||
6708bb27 | 203 | pr_debug("%s_ConfigFS: Changed Initiator ACL: %s" |
c66ac9db | 204 | " Mapped LUN: %u Write Protect bit to %s\n", |
e3d6f909 | 205 | se_tpg->se_tpg_tfo->get_fabric_name(), |
c66ac9db NB |
206 | lacl->initiatorname, lacl->mapped_lun, (op) ? "ON" : "OFF"); |
207 | ||
208 | return count; | |
209 | ||
210 | } | |
211 | ||
212 | TCM_MAPPEDLUN_ATTR(write_protect, S_IRUGO | S_IWUSR); | |
213 | ||
214 | CONFIGFS_EATTR_OPS(target_fabric_mappedlun, se_lun_acl, se_lun_group); | |
215 | ||
1f6fe7cb NB |
216 | static void target_fabric_mappedlun_release(struct config_item *item) |
217 | { | |
218 | struct se_lun_acl *lacl = container_of(to_config_group(item), | |
219 | struct se_lun_acl, se_lun_group); | |
220 | struct se_portal_group *se_tpg = lacl->se_lun_nacl->se_tpg; | |
221 | ||
222 | core_dev_free_initiator_node_lun_acl(se_tpg, lacl); | |
223 | } | |
224 | ||
c66ac9db NB |
225 | static struct configfs_attribute *target_fabric_mappedlun_attrs[] = { |
226 | &target_fabric_mappedlun_write_protect.attr, | |
227 | NULL, | |
228 | }; | |
229 | ||
230 | static struct configfs_item_operations target_fabric_mappedlun_item_ops = { | |
1f6fe7cb | 231 | .release = target_fabric_mappedlun_release, |
c66ac9db NB |
232 | .show_attribute = target_fabric_mappedlun_attr_show, |
233 | .store_attribute = target_fabric_mappedlun_attr_store, | |
234 | .allow_link = target_fabric_mappedlun_link, | |
235 | .drop_link = target_fabric_mappedlun_unlink, | |
236 | }; | |
237 | ||
238 | TF_CIT_SETUP(tpg_mappedlun, &target_fabric_mappedlun_item_ops, NULL, | |
239 | target_fabric_mappedlun_attrs); | |
240 | ||
241 | /* End of tfc_tpg_mappedlun_cit */ | |
242 | ||
12d23384 NB |
243 | /* Start of tfc_tpg_mappedlun_port_cit */ |
244 | ||
245 | static struct config_group *target_core_mappedlun_stat_mkdir( | |
246 | struct config_group *group, | |
247 | const char *name) | |
248 | { | |
249 | return ERR_PTR(-ENOSYS); | |
250 | } | |
251 | ||
252 | static void target_core_mappedlun_stat_rmdir( | |
253 | struct config_group *group, | |
254 | struct config_item *item) | |
255 | { | |
256 | return; | |
257 | } | |
258 | ||
259 | static struct configfs_group_operations target_fabric_mappedlun_stat_group_ops = { | |
260 | .make_group = target_core_mappedlun_stat_mkdir, | |
261 | .drop_item = target_core_mappedlun_stat_rmdir, | |
262 | }; | |
263 | ||
264 | TF_CIT_SETUP(tpg_mappedlun_stat, NULL, &target_fabric_mappedlun_stat_group_ops, | |
265 | NULL); | |
266 | ||
267 | /* End of tfc_tpg_mappedlun_port_cit */ | |
268 | ||
c66ac9db NB |
269 | /* Start of tfc_tpg_nacl_attrib_cit */ |
270 | ||
271 | CONFIGFS_EATTR_OPS(target_fabric_nacl_attrib, se_node_acl, acl_attrib_group); | |
272 | ||
273 | static struct configfs_item_operations target_fabric_nacl_attrib_item_ops = { | |
274 | .show_attribute = target_fabric_nacl_attrib_attr_show, | |
275 | .store_attribute = target_fabric_nacl_attrib_attr_store, | |
276 | }; | |
277 | ||
278 | TF_CIT_SETUP(tpg_nacl_attrib, &target_fabric_nacl_attrib_item_ops, NULL, NULL); | |
279 | ||
280 | /* End of tfc_tpg_nacl_attrib_cit */ | |
281 | ||
282 | /* Start of tfc_tpg_nacl_auth_cit */ | |
283 | ||
284 | CONFIGFS_EATTR_OPS(target_fabric_nacl_auth, se_node_acl, acl_auth_group); | |
285 | ||
286 | static struct configfs_item_operations target_fabric_nacl_auth_item_ops = { | |
287 | .show_attribute = target_fabric_nacl_auth_attr_show, | |
288 | .store_attribute = target_fabric_nacl_auth_attr_store, | |
289 | }; | |
290 | ||
291 | TF_CIT_SETUP(tpg_nacl_auth, &target_fabric_nacl_auth_item_ops, NULL, NULL); | |
292 | ||
293 | /* End of tfc_tpg_nacl_auth_cit */ | |
294 | ||
295 | /* Start of tfc_tpg_nacl_param_cit */ | |
296 | ||
297 | CONFIGFS_EATTR_OPS(target_fabric_nacl_param, se_node_acl, acl_param_group); | |
298 | ||
299 | static struct configfs_item_operations target_fabric_nacl_param_item_ops = { | |
300 | .show_attribute = target_fabric_nacl_param_attr_show, | |
301 | .store_attribute = target_fabric_nacl_param_attr_store, | |
302 | }; | |
303 | ||
304 | TF_CIT_SETUP(tpg_nacl_param, &target_fabric_nacl_param_item_ops, NULL, NULL); | |
305 | ||
306 | /* End of tfc_tpg_nacl_param_cit */ | |
307 | ||
308 | /* Start of tfc_tpg_nacl_base_cit */ | |
309 | ||
310 | CONFIGFS_EATTR_OPS(target_fabric_nacl_base, se_node_acl, acl_group); | |
311 | ||
312 | static struct config_group *target_fabric_make_mappedlun( | |
313 | struct config_group *group, | |
314 | const char *name) | |
315 | { | |
316 | struct se_node_acl *se_nacl = container_of(group, | |
317 | struct se_node_acl, acl_group); | |
318 | struct se_portal_group *se_tpg = se_nacl->se_tpg; | |
319 | struct target_fabric_configfs *tf = se_tpg->se_tpg_wwn->wwn_tf; | |
320 | struct se_lun_acl *lacl; | |
321 | struct config_item *acl_ci; | |
12d23384 | 322 | struct config_group *lacl_cg = NULL, *ml_stat_grp = NULL; |
c66ac9db NB |
323 | char *buf; |
324 | unsigned long mapped_lun; | |
325 | int ret = 0; | |
326 | ||
327 | acl_ci = &group->cg_item; | |
6708bb27 AG |
328 | if (!acl_ci) { |
329 | pr_err("Unable to locatel acl_ci\n"); | |
c66ac9db NB |
330 | return NULL; |
331 | } | |
332 | ||
333 | buf = kzalloc(strlen(name) + 1, GFP_KERNEL); | |
6708bb27 AG |
334 | if (!buf) { |
335 | pr_err("Unable to allocate memory for name buf\n"); | |
c66ac9db NB |
336 | return ERR_PTR(-ENOMEM); |
337 | } | |
338 | snprintf(buf, strlen(name) + 1, "%s", name); | |
339 | /* | |
340 | * Make sure user is creating iscsi/$IQN/$TPGT/acls/$INITIATOR/lun_$ID. | |
341 | */ | |
342 | if (strstr(buf, "lun_") != buf) { | |
6708bb27 | 343 | pr_err("Unable to locate \"lun_\" from buf: %s" |
c66ac9db NB |
344 | " name: %s\n", buf, name); |
345 | ret = -EINVAL; | |
346 | goto out; | |
347 | } | |
348 | /* | |
349 | * Determine the Mapped LUN value. This is what the SCSI Initiator | |
350 | * Port will actually see. | |
351 | */ | |
352 | if (strict_strtoul(buf + 4, 0, &mapped_lun) || mapped_lun > UINT_MAX) { | |
353 | ret = -EINVAL; | |
354 | goto out; | |
355 | } | |
356 | ||
357 | lacl = core_dev_init_initiator_node_lun_acl(se_tpg, mapped_lun, | |
358 | config_item_name(acl_ci), &ret); | |
6708bb27 | 359 | if (!lacl) { |
12d23384 | 360 | ret = -EINVAL; |
c66ac9db | 361 | goto out; |
12d23384 NB |
362 | } |
363 | ||
364 | lacl_cg = &lacl->se_lun_group; | |
365 | lacl_cg->default_groups = kzalloc(sizeof(struct config_group) * 2, | |
366 | GFP_KERNEL); | |
367 | if (!lacl_cg->default_groups) { | |
6708bb27 | 368 | pr_err("Unable to allocate lacl_cg->default_groups\n"); |
12d23384 NB |
369 | ret = -ENOMEM; |
370 | goto out; | |
371 | } | |
c66ac9db NB |
372 | |
373 | config_group_init_type_name(&lacl->se_lun_group, name, | |
374 | &TF_CIT_TMPL(tf)->tfc_tpg_mappedlun_cit); | |
12d23384 NB |
375 | config_group_init_type_name(&lacl->ml_stat_grps.stat_group, |
376 | "statistics", &TF_CIT_TMPL(tf)->tfc_tpg_mappedlun_stat_cit); | |
377 | lacl_cg->default_groups[0] = &lacl->ml_stat_grps.stat_group; | |
378 | lacl_cg->default_groups[1] = NULL; | |
379 | ||
e3d6f909 | 380 | ml_stat_grp = &lacl->ml_stat_grps.stat_group; |
12d23384 NB |
381 | ml_stat_grp->default_groups = kzalloc(sizeof(struct config_group) * 3, |
382 | GFP_KERNEL); | |
383 | if (!ml_stat_grp->default_groups) { | |
6708bb27 | 384 | pr_err("Unable to allocate ml_stat_grp->default_groups\n"); |
12d23384 NB |
385 | ret = -ENOMEM; |
386 | goto out; | |
387 | } | |
388 | target_stat_setup_mappedlun_default_groups(lacl); | |
c66ac9db NB |
389 | |
390 | kfree(buf); | |
391 | return &lacl->se_lun_group; | |
392 | out: | |
12d23384 NB |
393 | if (lacl_cg) |
394 | kfree(lacl_cg->default_groups); | |
c66ac9db NB |
395 | kfree(buf); |
396 | return ERR_PTR(ret); | |
397 | } | |
398 | ||
399 | static void target_fabric_drop_mappedlun( | |
400 | struct config_group *group, | |
401 | struct config_item *item) | |
402 | { | |
12d23384 NB |
403 | struct se_lun_acl *lacl = container_of(to_config_group(item), |
404 | struct se_lun_acl, se_lun_group); | |
405 | struct config_item *df_item; | |
406 | struct config_group *lacl_cg = NULL, *ml_stat_grp = NULL; | |
407 | int i; | |
408 | ||
e3d6f909 | 409 | ml_stat_grp = &lacl->ml_stat_grps.stat_group; |
12d23384 NB |
410 | for (i = 0; ml_stat_grp->default_groups[i]; i++) { |
411 | df_item = &ml_stat_grp->default_groups[i]->cg_item; | |
412 | ml_stat_grp->default_groups[i] = NULL; | |
413 | config_item_put(df_item); | |
414 | } | |
415 | kfree(ml_stat_grp->default_groups); | |
416 | ||
417 | lacl_cg = &lacl->se_lun_group; | |
418 | for (i = 0; lacl_cg->default_groups[i]; i++) { | |
419 | df_item = &lacl_cg->default_groups[i]->cg_item; | |
420 | lacl_cg->default_groups[i] = NULL; | |
421 | config_item_put(df_item); | |
422 | } | |
423 | kfree(lacl_cg->default_groups); | |
424 | ||
c66ac9db | 425 | config_item_put(item); |
1f6fe7cb NB |
426 | } |
427 | ||
428 | static void target_fabric_nacl_base_release(struct config_item *item) | |
429 | { | |
430 | struct se_node_acl *se_nacl = container_of(to_config_group(item), | |
431 | struct se_node_acl, acl_group); | |
432 | struct se_portal_group *se_tpg = se_nacl->se_tpg; | |
433 | struct target_fabric_configfs *tf = se_tpg->se_tpg_wwn->wwn_tf; | |
434 | ||
435 | tf->tf_ops.fabric_drop_nodeacl(se_nacl); | |
c66ac9db NB |
436 | } |
437 | ||
438 | static struct configfs_item_operations target_fabric_nacl_base_item_ops = { | |
1f6fe7cb | 439 | .release = target_fabric_nacl_base_release, |
c66ac9db NB |
440 | .show_attribute = target_fabric_nacl_base_attr_show, |
441 | .store_attribute = target_fabric_nacl_base_attr_store, | |
442 | }; | |
443 | ||
444 | static struct configfs_group_operations target_fabric_nacl_base_group_ops = { | |
445 | .make_group = target_fabric_make_mappedlun, | |
446 | .drop_item = target_fabric_drop_mappedlun, | |
447 | }; | |
448 | ||
449 | TF_CIT_SETUP(tpg_nacl_base, &target_fabric_nacl_base_item_ops, | |
450 | &target_fabric_nacl_base_group_ops, NULL); | |
451 | ||
452 | /* End of tfc_tpg_nacl_base_cit */ | |
453 | ||
12d23384 NB |
454 | /* Start of tfc_node_fabric_stats_cit */ |
455 | /* | |
456 | * This is used as a placeholder for struct se_node_acl->acl_fabric_stat_group | |
457 | * to allow fabrics access to ->acl_fabric_stat_group->default_groups[] | |
458 | */ | |
459 | TF_CIT_SETUP(tpg_nacl_stat, NULL, NULL, NULL); | |
460 | ||
461 | /* End of tfc_wwn_fabric_stats_cit */ | |
462 | ||
c66ac9db NB |
463 | /* Start of tfc_tpg_nacl_cit */ |
464 | ||
465 | static struct config_group *target_fabric_make_nodeacl( | |
466 | struct config_group *group, | |
467 | const char *name) | |
468 | { | |
469 | struct se_portal_group *se_tpg = container_of(group, | |
470 | struct se_portal_group, tpg_acl_group); | |
471 | struct target_fabric_configfs *tf = se_tpg->se_tpg_wwn->wwn_tf; | |
472 | struct se_node_acl *se_nacl; | |
473 | struct config_group *nacl_cg; | |
474 | ||
6708bb27 AG |
475 | if (!tf->tf_ops.fabric_make_nodeacl) { |
476 | pr_err("tf->tf_ops.fabric_make_nodeacl is NULL\n"); | |
c66ac9db NB |
477 | return ERR_PTR(-ENOSYS); |
478 | } | |
479 | ||
480 | se_nacl = tf->tf_ops.fabric_make_nodeacl(se_tpg, group, name); | |
481 | if (IS_ERR(se_nacl)) | |
e1750ba2 | 482 | return ERR_CAST(se_nacl); |
c66ac9db NB |
483 | |
484 | nacl_cg = &se_nacl->acl_group; | |
485 | nacl_cg->default_groups = se_nacl->acl_default_groups; | |
486 | nacl_cg->default_groups[0] = &se_nacl->acl_attrib_group; | |
487 | nacl_cg->default_groups[1] = &se_nacl->acl_auth_group; | |
488 | nacl_cg->default_groups[2] = &se_nacl->acl_param_group; | |
12d23384 NB |
489 | nacl_cg->default_groups[3] = &se_nacl->acl_fabric_stat_group; |
490 | nacl_cg->default_groups[4] = NULL; | |
c66ac9db NB |
491 | |
492 | config_group_init_type_name(&se_nacl->acl_group, name, | |
493 | &TF_CIT_TMPL(tf)->tfc_tpg_nacl_base_cit); | |
494 | config_group_init_type_name(&se_nacl->acl_attrib_group, "attrib", | |
495 | &TF_CIT_TMPL(tf)->tfc_tpg_nacl_attrib_cit); | |
496 | config_group_init_type_name(&se_nacl->acl_auth_group, "auth", | |
497 | &TF_CIT_TMPL(tf)->tfc_tpg_nacl_auth_cit); | |
498 | config_group_init_type_name(&se_nacl->acl_param_group, "param", | |
499 | &TF_CIT_TMPL(tf)->tfc_tpg_nacl_param_cit); | |
12d23384 NB |
500 | config_group_init_type_name(&se_nacl->acl_fabric_stat_group, |
501 | "fabric_statistics", | |
502 | &TF_CIT_TMPL(tf)->tfc_tpg_nacl_stat_cit); | |
c66ac9db NB |
503 | |
504 | return &se_nacl->acl_group; | |
505 | } | |
506 | ||
507 | static void target_fabric_drop_nodeacl( | |
508 | struct config_group *group, | |
509 | struct config_item *item) | |
510 | { | |
c66ac9db NB |
511 | struct se_node_acl *se_nacl = container_of(to_config_group(item), |
512 | struct se_node_acl, acl_group); | |
513 | struct config_item *df_item; | |
514 | struct config_group *nacl_cg; | |
515 | int i; | |
516 | ||
517 | nacl_cg = &se_nacl->acl_group; | |
518 | for (i = 0; nacl_cg->default_groups[i]; i++) { | |
519 | df_item = &nacl_cg->default_groups[i]->cg_item; | |
520 | nacl_cg->default_groups[i] = NULL; | |
521 | config_item_put(df_item); | |
522 | } | |
1f6fe7cb NB |
523 | /* |
524 | * struct se_node_acl free is done in target_fabric_nacl_base_release() | |
525 | */ | |
c66ac9db | 526 | config_item_put(item); |
c66ac9db NB |
527 | } |
528 | ||
529 | static struct configfs_group_operations target_fabric_nacl_group_ops = { | |
530 | .make_group = target_fabric_make_nodeacl, | |
531 | .drop_item = target_fabric_drop_nodeacl, | |
532 | }; | |
533 | ||
534 | TF_CIT_SETUP(tpg_nacl, NULL, &target_fabric_nacl_group_ops, NULL); | |
535 | ||
536 | /* End of tfc_tpg_nacl_cit */ | |
537 | ||
538 | /* Start of tfc_tpg_np_base_cit */ | |
539 | ||
540 | CONFIGFS_EATTR_OPS(target_fabric_np_base, se_tpg_np, tpg_np_group); | |
541 | ||
1f6fe7cb NB |
542 | static void target_fabric_np_base_release(struct config_item *item) |
543 | { | |
544 | struct se_tpg_np *se_tpg_np = container_of(to_config_group(item), | |
545 | struct se_tpg_np, tpg_np_group); | |
546 | struct se_portal_group *se_tpg = se_tpg_np->tpg_np_parent; | |
547 | struct target_fabric_configfs *tf = se_tpg->se_tpg_wwn->wwn_tf; | |
548 | ||
549 | tf->tf_ops.fabric_drop_np(se_tpg_np); | |
550 | } | |
551 | ||
c66ac9db | 552 | static struct configfs_item_operations target_fabric_np_base_item_ops = { |
1f6fe7cb | 553 | .release = target_fabric_np_base_release, |
c66ac9db NB |
554 | .show_attribute = target_fabric_np_base_attr_show, |
555 | .store_attribute = target_fabric_np_base_attr_store, | |
556 | }; | |
557 | ||
558 | TF_CIT_SETUP(tpg_np_base, &target_fabric_np_base_item_ops, NULL, NULL); | |
559 | ||
560 | /* End of tfc_tpg_np_base_cit */ | |
561 | ||
562 | /* Start of tfc_tpg_np_cit */ | |
563 | ||
564 | static struct config_group *target_fabric_make_np( | |
565 | struct config_group *group, | |
566 | const char *name) | |
567 | { | |
568 | struct se_portal_group *se_tpg = container_of(group, | |
569 | struct se_portal_group, tpg_np_group); | |
570 | struct target_fabric_configfs *tf = se_tpg->se_tpg_wwn->wwn_tf; | |
571 | struct se_tpg_np *se_tpg_np; | |
572 | ||
6708bb27 AG |
573 | if (!tf->tf_ops.fabric_make_np) { |
574 | pr_err("tf->tf_ops.fabric_make_np is NULL\n"); | |
c66ac9db NB |
575 | return ERR_PTR(-ENOSYS); |
576 | } | |
577 | ||
578 | se_tpg_np = tf->tf_ops.fabric_make_np(se_tpg, group, name); | |
6708bb27 | 579 | if (!se_tpg_np || IS_ERR(se_tpg_np)) |
c66ac9db NB |
580 | return ERR_PTR(-EINVAL); |
581 | ||
1f6fe7cb | 582 | se_tpg_np->tpg_np_parent = se_tpg; |
c66ac9db NB |
583 | config_group_init_type_name(&se_tpg_np->tpg_np_group, name, |
584 | &TF_CIT_TMPL(tf)->tfc_tpg_np_base_cit); | |
585 | ||
586 | return &se_tpg_np->tpg_np_group; | |
587 | } | |
588 | ||
589 | static void target_fabric_drop_np( | |
590 | struct config_group *group, | |
591 | struct config_item *item) | |
592 | { | |
1f6fe7cb NB |
593 | /* |
594 | * struct se_tpg_np is released via target_fabric_np_base_release() | |
595 | */ | |
c66ac9db | 596 | config_item_put(item); |
c66ac9db NB |
597 | } |
598 | ||
599 | static struct configfs_group_operations target_fabric_np_group_ops = { | |
600 | .make_group = &target_fabric_make_np, | |
601 | .drop_item = &target_fabric_drop_np, | |
602 | }; | |
603 | ||
604 | TF_CIT_SETUP(tpg_np, NULL, &target_fabric_np_group_ops, NULL); | |
605 | ||
606 | /* End of tfc_tpg_np_cit */ | |
607 | ||
608 | /* Start of tfc_tpg_port_cit */ | |
609 | ||
610 | CONFIGFS_EATTR_STRUCT(target_fabric_port, se_lun); | |
611 | #define TCM_PORT_ATTR(_name, _mode) \ | |
612 | static struct target_fabric_port_attribute target_fabric_port_##_name = \ | |
613 | __CONFIGFS_EATTR(_name, _mode, \ | |
614 | target_fabric_port_show_attr_##_name, \ | |
615 | target_fabric_port_store_attr_##_name); | |
616 | ||
617 | #define TCM_PORT_ATTOR_RO(_name) \ | |
618 | __CONFIGFS_EATTR_RO(_name, \ | |
619 | target_fabric_port_show_attr_##_name); | |
620 | ||
621 | /* | |
622 | * alua_tg_pt_gp | |
623 | */ | |
624 | static ssize_t target_fabric_port_show_attr_alua_tg_pt_gp( | |
625 | struct se_lun *lun, | |
626 | char *page) | |
627 | { | |
6708bb27 | 628 | if (!lun || !lun->lun_sep) |
c66ac9db NB |
629 | return -ENODEV; |
630 | ||
631 | return core_alua_show_tg_pt_gp_info(lun->lun_sep, page); | |
632 | } | |
633 | ||
634 | static ssize_t target_fabric_port_store_attr_alua_tg_pt_gp( | |
635 | struct se_lun *lun, | |
636 | const char *page, | |
637 | size_t count) | |
638 | { | |
6708bb27 | 639 | if (!lun || !lun->lun_sep) |
c66ac9db NB |
640 | return -ENODEV; |
641 | ||
642 | return core_alua_store_tg_pt_gp_info(lun->lun_sep, page, count); | |
643 | } | |
644 | ||
645 | TCM_PORT_ATTR(alua_tg_pt_gp, S_IRUGO | S_IWUSR); | |
646 | ||
647 | /* | |
648 | * alua_tg_pt_offline | |
649 | */ | |
650 | static ssize_t target_fabric_port_show_attr_alua_tg_pt_offline( | |
651 | struct se_lun *lun, | |
652 | char *page) | |
653 | { | |
6708bb27 | 654 | if (!lun || !lun->lun_sep) |
c66ac9db NB |
655 | return -ENODEV; |
656 | ||
657 | return core_alua_show_offline_bit(lun, page); | |
658 | } | |
659 | ||
660 | static ssize_t target_fabric_port_store_attr_alua_tg_pt_offline( | |
661 | struct se_lun *lun, | |
662 | const char *page, | |
663 | size_t count) | |
664 | { | |
6708bb27 | 665 | if (!lun || !lun->lun_sep) |
c66ac9db NB |
666 | return -ENODEV; |
667 | ||
668 | return core_alua_store_offline_bit(lun, page, count); | |
669 | } | |
670 | ||
671 | TCM_PORT_ATTR(alua_tg_pt_offline, S_IRUGO | S_IWUSR); | |
672 | ||
673 | /* | |
674 | * alua_tg_pt_status | |
675 | */ | |
676 | static ssize_t target_fabric_port_show_attr_alua_tg_pt_status( | |
677 | struct se_lun *lun, | |
678 | char *page) | |
679 | { | |
6708bb27 | 680 | if (!lun || !lun->lun_sep) |
c66ac9db NB |
681 | return -ENODEV; |
682 | ||
683 | return core_alua_show_secondary_status(lun, page); | |
684 | } | |
685 | ||
686 | static ssize_t target_fabric_port_store_attr_alua_tg_pt_status( | |
687 | struct se_lun *lun, | |
688 | const char *page, | |
689 | size_t count) | |
690 | { | |
6708bb27 | 691 | if (!lun || !lun->lun_sep) |
c66ac9db NB |
692 | return -ENODEV; |
693 | ||
694 | return core_alua_store_secondary_status(lun, page, count); | |
695 | } | |
696 | ||
697 | TCM_PORT_ATTR(alua_tg_pt_status, S_IRUGO | S_IWUSR); | |
698 | ||
699 | /* | |
700 | * alua_tg_pt_write_md | |
701 | */ | |
702 | static ssize_t target_fabric_port_show_attr_alua_tg_pt_write_md( | |
703 | struct se_lun *lun, | |
704 | char *page) | |
705 | { | |
6708bb27 | 706 | if (!lun || !lun->lun_sep) |
c66ac9db NB |
707 | return -ENODEV; |
708 | ||
709 | return core_alua_show_secondary_write_metadata(lun, page); | |
710 | } | |
711 | ||
712 | static ssize_t target_fabric_port_store_attr_alua_tg_pt_write_md( | |
713 | struct se_lun *lun, | |
714 | const char *page, | |
715 | size_t count) | |
716 | { | |
6708bb27 | 717 | if (!lun || !lun->lun_sep) |
c66ac9db NB |
718 | return -ENODEV; |
719 | ||
720 | return core_alua_store_secondary_write_metadata(lun, page, count); | |
721 | } | |
722 | ||
723 | TCM_PORT_ATTR(alua_tg_pt_write_md, S_IRUGO | S_IWUSR); | |
724 | ||
725 | ||
726 | static struct configfs_attribute *target_fabric_port_attrs[] = { | |
727 | &target_fabric_port_alua_tg_pt_gp.attr, | |
728 | &target_fabric_port_alua_tg_pt_offline.attr, | |
729 | &target_fabric_port_alua_tg_pt_status.attr, | |
730 | &target_fabric_port_alua_tg_pt_write_md.attr, | |
731 | NULL, | |
732 | }; | |
733 | ||
734 | CONFIGFS_EATTR_OPS(target_fabric_port, se_lun, lun_group); | |
735 | ||
736 | static int target_fabric_port_link( | |
737 | struct config_item *lun_ci, | |
738 | struct config_item *se_dev_ci) | |
739 | { | |
740 | struct config_item *tpg_ci; | |
741 | struct se_device *dev; | |
742 | struct se_lun *lun = container_of(to_config_group(lun_ci), | |
743 | struct se_lun, lun_group); | |
744 | struct se_lun *lun_p; | |
745 | struct se_portal_group *se_tpg; | |
746 | struct se_subsystem_dev *se_dev = container_of( | |
747 | to_config_group(se_dev_ci), struct se_subsystem_dev, | |
748 | se_dev_group); | |
749 | struct target_fabric_configfs *tf; | |
750 | int ret; | |
751 | ||
752 | tpg_ci = &lun_ci->ci_parent->ci_group->cg_item; | |
753 | se_tpg = container_of(to_config_group(tpg_ci), | |
754 | struct se_portal_group, tpg_group); | |
755 | tf = se_tpg->se_tpg_wwn->wwn_tf; | |
756 | ||
757 | if (lun->lun_se_dev != NULL) { | |
6708bb27 | 758 | pr_err("Port Symlink already exists\n"); |
c66ac9db NB |
759 | return -EEXIST; |
760 | } | |
761 | ||
762 | dev = se_dev->se_dev_ptr; | |
6708bb27 AG |
763 | if (!dev) { |
764 | pr_err("Unable to locate struct se_device pointer from" | |
c66ac9db NB |
765 | " %s\n", config_item_name(se_dev_ci)); |
766 | ret = -ENODEV; | |
767 | goto out; | |
768 | } | |
769 | ||
770 | lun_p = core_dev_add_lun(se_tpg, dev->se_hba, dev, | |
771 | lun->unpacked_lun); | |
6708bb27 AG |
772 | if (IS_ERR(lun_p) || !lun_p) { |
773 | pr_err("core_dev_add_lun() failed\n"); | |
c66ac9db NB |
774 | ret = -EINVAL; |
775 | goto out; | |
776 | } | |
777 | ||
778 | if (tf->tf_ops.fabric_post_link) { | |
779 | /* | |
780 | * Call the optional fabric_post_link() to allow a | |
781 | * fabric module to setup any additional state once | |
782 | * core_dev_add_lun() has been called.. | |
783 | */ | |
784 | tf->tf_ops.fabric_post_link(se_tpg, lun); | |
785 | } | |
786 | ||
787 | return 0; | |
788 | out: | |
789 | return ret; | |
790 | } | |
791 | ||
792 | static int target_fabric_port_unlink( | |
793 | struct config_item *lun_ci, | |
794 | struct config_item *se_dev_ci) | |
795 | { | |
796 | struct se_lun *lun = container_of(to_config_group(lun_ci), | |
797 | struct se_lun, lun_group); | |
798 | struct se_portal_group *se_tpg = lun->lun_sep->sep_tpg; | |
799 | struct target_fabric_configfs *tf = se_tpg->se_tpg_wwn->wwn_tf; | |
800 | ||
801 | if (tf->tf_ops.fabric_pre_unlink) { | |
802 | /* | |
803 | * Call the optional fabric_pre_unlink() to allow a | |
804 | * fabric module to release any additional stat before | |
805 | * core_dev_del_lun() is called. | |
806 | */ | |
807 | tf->tf_ops.fabric_pre_unlink(se_tpg, lun); | |
808 | } | |
809 | ||
810 | core_dev_del_lun(se_tpg, lun->unpacked_lun); | |
811 | return 0; | |
812 | } | |
813 | ||
814 | static struct configfs_item_operations target_fabric_port_item_ops = { | |
815 | .show_attribute = target_fabric_port_attr_show, | |
816 | .store_attribute = target_fabric_port_attr_store, | |
817 | .allow_link = target_fabric_port_link, | |
818 | .drop_link = target_fabric_port_unlink, | |
819 | }; | |
820 | ||
821 | TF_CIT_SETUP(tpg_port, &target_fabric_port_item_ops, NULL, target_fabric_port_attrs); | |
822 | ||
823 | /* End of tfc_tpg_port_cit */ | |
824 | ||
12d23384 NB |
825 | /* Start of tfc_tpg_port_stat_cit */ |
826 | ||
827 | static struct config_group *target_core_port_stat_mkdir( | |
828 | struct config_group *group, | |
829 | const char *name) | |
830 | { | |
831 | return ERR_PTR(-ENOSYS); | |
832 | } | |
833 | ||
834 | static void target_core_port_stat_rmdir( | |
835 | struct config_group *group, | |
836 | struct config_item *item) | |
837 | { | |
838 | return; | |
839 | } | |
840 | ||
841 | static struct configfs_group_operations target_fabric_port_stat_group_ops = { | |
842 | .make_group = target_core_port_stat_mkdir, | |
843 | .drop_item = target_core_port_stat_rmdir, | |
844 | }; | |
845 | ||
846 | TF_CIT_SETUP(tpg_port_stat, NULL, &target_fabric_port_stat_group_ops, NULL); | |
847 | ||
848 | /* End of tfc_tpg_port_stat_cit */ | |
849 | ||
c66ac9db NB |
850 | /* Start of tfc_tpg_lun_cit */ |
851 | ||
852 | static struct config_group *target_fabric_make_lun( | |
853 | struct config_group *group, | |
854 | const char *name) | |
855 | { | |
856 | struct se_lun *lun; | |
857 | struct se_portal_group *se_tpg = container_of(group, | |
858 | struct se_portal_group, tpg_lun_group); | |
859 | struct target_fabric_configfs *tf = se_tpg->se_tpg_wwn->wwn_tf; | |
12d23384 | 860 | struct config_group *lun_cg = NULL, *port_stat_grp = NULL; |
c66ac9db | 861 | unsigned long unpacked_lun; |
12d23384 | 862 | int errno; |
c66ac9db NB |
863 | |
864 | if (strstr(name, "lun_") != name) { | |
6708bb27 | 865 | pr_err("Unable to locate \'_\" in" |
c66ac9db NB |
866 | " \"lun_$LUN_NUMBER\"\n"); |
867 | return ERR_PTR(-EINVAL); | |
868 | } | |
869 | if (strict_strtoul(name + 4, 0, &unpacked_lun) || unpacked_lun > UINT_MAX) | |
870 | return ERR_PTR(-EINVAL); | |
871 | ||
872 | lun = core_get_lun_from_tpg(se_tpg, unpacked_lun); | |
6708bb27 | 873 | if (!lun) |
c66ac9db NB |
874 | return ERR_PTR(-EINVAL); |
875 | ||
12d23384 NB |
876 | lun_cg = &lun->lun_group; |
877 | lun_cg->default_groups = kzalloc(sizeof(struct config_group) * 2, | |
878 | GFP_KERNEL); | |
879 | if (!lun_cg->default_groups) { | |
6708bb27 | 880 | pr_err("Unable to allocate lun_cg->default_groups\n"); |
12d23384 NB |
881 | return ERR_PTR(-ENOMEM); |
882 | } | |
883 | ||
c66ac9db NB |
884 | config_group_init_type_name(&lun->lun_group, name, |
885 | &TF_CIT_TMPL(tf)->tfc_tpg_port_cit); | |
12d23384 NB |
886 | config_group_init_type_name(&lun->port_stat_grps.stat_group, |
887 | "statistics", &TF_CIT_TMPL(tf)->tfc_tpg_port_stat_cit); | |
888 | lun_cg->default_groups[0] = &lun->port_stat_grps.stat_group; | |
889 | lun_cg->default_groups[1] = NULL; | |
890 | ||
e3d6f909 | 891 | port_stat_grp = &lun->port_stat_grps.stat_group; |
12d23384 NB |
892 | port_stat_grp->default_groups = kzalloc(sizeof(struct config_group) * 3, |
893 | GFP_KERNEL); | |
894 | if (!port_stat_grp->default_groups) { | |
6708bb27 | 895 | pr_err("Unable to allocate port_stat_grp->default_groups\n"); |
12d23384 NB |
896 | errno = -ENOMEM; |
897 | goto out; | |
898 | } | |
899 | target_stat_setup_port_default_groups(lun); | |
c66ac9db NB |
900 | |
901 | return &lun->lun_group; | |
12d23384 NB |
902 | out: |
903 | if (lun_cg) | |
904 | kfree(lun_cg->default_groups); | |
905 | return ERR_PTR(errno); | |
c66ac9db NB |
906 | } |
907 | ||
908 | static void target_fabric_drop_lun( | |
909 | struct config_group *group, | |
910 | struct config_item *item) | |
911 | { | |
12d23384 NB |
912 | struct se_lun *lun = container_of(to_config_group(item), |
913 | struct se_lun, lun_group); | |
914 | struct config_item *df_item; | |
915 | struct config_group *lun_cg, *port_stat_grp; | |
916 | int i; | |
917 | ||
e3d6f909 | 918 | port_stat_grp = &lun->port_stat_grps.stat_group; |
12d23384 NB |
919 | for (i = 0; port_stat_grp->default_groups[i]; i++) { |
920 | df_item = &port_stat_grp->default_groups[i]->cg_item; | |
921 | port_stat_grp->default_groups[i] = NULL; | |
922 | config_item_put(df_item); | |
923 | } | |
924 | kfree(port_stat_grp->default_groups); | |
925 | ||
926 | lun_cg = &lun->lun_group; | |
927 | for (i = 0; lun_cg->default_groups[i]; i++) { | |
928 | df_item = &lun_cg->default_groups[i]->cg_item; | |
929 | lun_cg->default_groups[i] = NULL; | |
930 | config_item_put(df_item); | |
931 | } | |
932 | kfree(lun_cg->default_groups); | |
933 | ||
c66ac9db NB |
934 | config_item_put(item); |
935 | } | |
936 | ||
937 | static struct configfs_group_operations target_fabric_lun_group_ops = { | |
938 | .make_group = &target_fabric_make_lun, | |
939 | .drop_item = &target_fabric_drop_lun, | |
940 | }; | |
941 | ||
942 | TF_CIT_SETUP(tpg_lun, NULL, &target_fabric_lun_group_ops, NULL); | |
943 | ||
944 | /* End of tfc_tpg_lun_cit */ | |
945 | ||
946 | /* Start of tfc_tpg_attrib_cit */ | |
947 | ||
948 | CONFIGFS_EATTR_OPS(target_fabric_tpg_attrib, se_portal_group, tpg_attrib_group); | |
949 | ||
950 | static struct configfs_item_operations target_fabric_tpg_attrib_item_ops = { | |
951 | .show_attribute = target_fabric_tpg_attrib_attr_show, | |
952 | .store_attribute = target_fabric_tpg_attrib_attr_store, | |
953 | }; | |
954 | ||
955 | TF_CIT_SETUP(tpg_attrib, &target_fabric_tpg_attrib_item_ops, NULL, NULL); | |
956 | ||
957 | /* End of tfc_tpg_attrib_cit */ | |
958 | ||
959 | /* Start of tfc_tpg_param_cit */ | |
960 | ||
961 | CONFIGFS_EATTR_OPS(target_fabric_tpg_param, se_portal_group, tpg_param_group); | |
962 | ||
963 | static struct configfs_item_operations target_fabric_tpg_param_item_ops = { | |
964 | .show_attribute = target_fabric_tpg_param_attr_show, | |
965 | .store_attribute = target_fabric_tpg_param_attr_store, | |
966 | }; | |
967 | ||
968 | TF_CIT_SETUP(tpg_param, &target_fabric_tpg_param_item_ops, NULL, NULL); | |
969 | ||
970 | /* End of tfc_tpg_param_cit */ | |
971 | ||
972 | /* Start of tfc_tpg_base_cit */ | |
973 | /* | |
974 | * For use with TF_TPG_ATTR() and TF_TPG_ATTR_RO() | |
975 | */ | |
976 | CONFIGFS_EATTR_OPS(target_fabric_tpg, se_portal_group, tpg_group); | |
977 | ||
1f6fe7cb NB |
978 | static void target_fabric_tpg_release(struct config_item *item) |
979 | { | |
980 | struct se_portal_group *se_tpg = container_of(to_config_group(item), | |
981 | struct se_portal_group, tpg_group); | |
982 | struct se_wwn *wwn = se_tpg->se_tpg_wwn; | |
983 | struct target_fabric_configfs *tf = wwn->wwn_tf; | |
984 | ||
985 | tf->tf_ops.fabric_drop_tpg(se_tpg); | |
986 | } | |
987 | ||
c66ac9db | 988 | static struct configfs_item_operations target_fabric_tpg_base_item_ops = { |
1f6fe7cb | 989 | .release = target_fabric_tpg_release, |
c66ac9db NB |
990 | .show_attribute = target_fabric_tpg_attr_show, |
991 | .store_attribute = target_fabric_tpg_attr_store, | |
992 | }; | |
993 | ||
994 | TF_CIT_SETUP(tpg_base, &target_fabric_tpg_base_item_ops, NULL, NULL); | |
995 | ||
996 | /* End of tfc_tpg_base_cit */ | |
997 | ||
998 | /* Start of tfc_tpg_cit */ | |
999 | ||
1000 | static struct config_group *target_fabric_make_tpg( | |
1001 | struct config_group *group, | |
1002 | const char *name) | |
1003 | { | |
1004 | struct se_wwn *wwn = container_of(group, struct se_wwn, wwn_group); | |
1005 | struct target_fabric_configfs *tf = wwn->wwn_tf; | |
1006 | struct se_portal_group *se_tpg; | |
1007 | ||
6708bb27 AG |
1008 | if (!tf->tf_ops.fabric_make_tpg) { |
1009 | pr_err("tf->tf_ops.fabric_make_tpg is NULL\n"); | |
c66ac9db NB |
1010 | return ERR_PTR(-ENOSYS); |
1011 | } | |
1012 | ||
1013 | se_tpg = tf->tf_ops.fabric_make_tpg(wwn, group, name); | |
6708bb27 | 1014 | if (!se_tpg || IS_ERR(se_tpg)) |
c66ac9db NB |
1015 | return ERR_PTR(-EINVAL); |
1016 | /* | |
1017 | * Setup default groups from pre-allocated se_tpg->tpg_default_groups | |
1018 | */ | |
1019 | se_tpg->tpg_group.default_groups = se_tpg->tpg_default_groups; | |
1020 | se_tpg->tpg_group.default_groups[0] = &se_tpg->tpg_lun_group; | |
1021 | se_tpg->tpg_group.default_groups[1] = &se_tpg->tpg_np_group; | |
1022 | se_tpg->tpg_group.default_groups[2] = &se_tpg->tpg_acl_group; | |
1023 | se_tpg->tpg_group.default_groups[3] = &se_tpg->tpg_attrib_group; | |
1024 | se_tpg->tpg_group.default_groups[4] = &se_tpg->tpg_param_group; | |
1025 | se_tpg->tpg_group.default_groups[5] = NULL; | |
1026 | ||
1027 | config_group_init_type_name(&se_tpg->tpg_group, name, | |
1028 | &TF_CIT_TMPL(tf)->tfc_tpg_base_cit); | |
1029 | config_group_init_type_name(&se_tpg->tpg_lun_group, "lun", | |
1030 | &TF_CIT_TMPL(tf)->tfc_tpg_lun_cit); | |
1031 | config_group_init_type_name(&se_tpg->tpg_np_group, "np", | |
1032 | &TF_CIT_TMPL(tf)->tfc_tpg_np_cit); | |
1033 | config_group_init_type_name(&se_tpg->tpg_acl_group, "acls", | |
1034 | &TF_CIT_TMPL(tf)->tfc_tpg_nacl_cit); | |
1035 | config_group_init_type_name(&se_tpg->tpg_attrib_group, "attrib", | |
1036 | &TF_CIT_TMPL(tf)->tfc_tpg_attrib_cit); | |
1037 | config_group_init_type_name(&se_tpg->tpg_param_group, "param", | |
1038 | &TF_CIT_TMPL(tf)->tfc_tpg_param_cit); | |
1039 | ||
1040 | return &se_tpg->tpg_group; | |
1041 | } | |
1042 | ||
1043 | static void target_fabric_drop_tpg( | |
1044 | struct config_group *group, | |
1045 | struct config_item *item) | |
1046 | { | |
c66ac9db NB |
1047 | struct se_portal_group *se_tpg = container_of(to_config_group(item), |
1048 | struct se_portal_group, tpg_group); | |
1049 | struct config_group *tpg_cg = &se_tpg->tpg_group; | |
1050 | struct config_item *df_item; | |
1051 | int i; | |
1052 | /* | |
1053 | * Release default groups, but do not release tpg_cg->default_groups | |
1054 | * memory as it is statically allocated at se_tpg->tpg_default_groups. | |
1055 | */ | |
1056 | for (i = 0; tpg_cg->default_groups[i]; i++) { | |
1057 | df_item = &tpg_cg->default_groups[i]->cg_item; | |
1058 | tpg_cg->default_groups[i] = NULL; | |
1059 | config_item_put(df_item); | |
1060 | } | |
1061 | ||
1062 | config_item_put(item); | |
c66ac9db NB |
1063 | } |
1064 | ||
1f6fe7cb NB |
1065 | static void target_fabric_release_wwn(struct config_item *item) |
1066 | { | |
1067 | struct se_wwn *wwn = container_of(to_config_group(item), | |
1068 | struct se_wwn, wwn_group); | |
1069 | struct target_fabric_configfs *tf = wwn->wwn_tf; | |
1070 | ||
1071 | tf->tf_ops.fabric_drop_wwn(wwn); | |
1072 | } | |
1073 | ||
1074 | static struct configfs_item_operations target_fabric_tpg_item_ops = { | |
1075 | .release = target_fabric_release_wwn, | |
1076 | }; | |
1077 | ||
c66ac9db NB |
1078 | static struct configfs_group_operations target_fabric_tpg_group_ops = { |
1079 | .make_group = target_fabric_make_tpg, | |
1080 | .drop_item = target_fabric_drop_tpg, | |
1081 | }; | |
1082 | ||
1f6fe7cb NB |
1083 | TF_CIT_SETUP(tpg, &target_fabric_tpg_item_ops, &target_fabric_tpg_group_ops, |
1084 | NULL); | |
c66ac9db NB |
1085 | |
1086 | /* End of tfc_tpg_cit */ | |
1087 | ||
12d23384 NB |
1088 | /* Start of tfc_wwn_fabric_stats_cit */ |
1089 | /* | |
1090 | * This is used as a placeholder for struct se_wwn->fabric_stat_group | |
1091 | * to allow fabrics access to ->fabric_stat_group->default_groups[] | |
1092 | */ | |
1093 | TF_CIT_SETUP(wwn_fabric_stats, NULL, NULL, NULL); | |
1094 | ||
1095 | /* End of tfc_wwn_fabric_stats_cit */ | |
1096 | ||
c66ac9db NB |
1097 | /* Start of tfc_wwn_cit */ |
1098 | ||
1099 | static struct config_group *target_fabric_make_wwn( | |
1100 | struct config_group *group, | |
1101 | const char *name) | |
1102 | { | |
1103 | struct target_fabric_configfs *tf = container_of(group, | |
1104 | struct target_fabric_configfs, tf_group); | |
1105 | struct se_wwn *wwn; | |
1106 | ||
6708bb27 AG |
1107 | if (!tf->tf_ops.fabric_make_wwn) { |
1108 | pr_err("tf->tf_ops.fabric_make_wwn is NULL\n"); | |
c66ac9db NB |
1109 | return ERR_PTR(-ENOSYS); |
1110 | } | |
1111 | ||
1112 | wwn = tf->tf_ops.fabric_make_wwn(tf, group, name); | |
6708bb27 | 1113 | if (!wwn || IS_ERR(wwn)) |
c66ac9db NB |
1114 | return ERR_PTR(-EINVAL); |
1115 | ||
1116 | wwn->wwn_tf = tf; | |
12d23384 NB |
1117 | /* |
1118 | * Setup default groups from pre-allocated wwn->wwn_default_groups | |
1119 | */ | |
1120 | wwn->wwn_group.default_groups = wwn->wwn_default_groups; | |
1121 | wwn->wwn_group.default_groups[0] = &wwn->fabric_stat_group; | |
1122 | wwn->wwn_group.default_groups[1] = NULL; | |
1123 | ||
c66ac9db NB |
1124 | config_group_init_type_name(&wwn->wwn_group, name, |
1125 | &TF_CIT_TMPL(tf)->tfc_tpg_cit); | |
12d23384 NB |
1126 | config_group_init_type_name(&wwn->fabric_stat_group, "fabric_statistics", |
1127 | &TF_CIT_TMPL(tf)->tfc_wwn_fabric_stats_cit); | |
c66ac9db NB |
1128 | |
1129 | return &wwn->wwn_group; | |
1130 | } | |
1131 | ||
1132 | static void target_fabric_drop_wwn( | |
1133 | struct config_group *group, | |
1134 | struct config_item *item) | |
1135 | { | |
12d23384 NB |
1136 | struct se_wwn *wwn = container_of(to_config_group(item), |
1137 | struct se_wwn, wwn_group); | |
1138 | struct config_item *df_item; | |
1139 | struct config_group *cg = &wwn->wwn_group; | |
1140 | int i; | |
1141 | ||
1142 | for (i = 0; cg->default_groups[i]; i++) { | |
1143 | df_item = &cg->default_groups[i]->cg_item; | |
1144 | cg->default_groups[i] = NULL; | |
1145 | config_item_put(df_item); | |
1146 | } | |
1147 | ||
c66ac9db | 1148 | config_item_put(item); |
c66ac9db NB |
1149 | } |
1150 | ||
1151 | static struct configfs_group_operations target_fabric_wwn_group_ops = { | |
1152 | .make_group = target_fabric_make_wwn, | |
1153 | .drop_item = target_fabric_drop_wwn, | |
1154 | }; | |
1155 | /* | |
1156 | * For use with TF_WWN_ATTR() and TF_WWN_ATTR_RO() | |
1157 | */ | |
1158 | CONFIGFS_EATTR_OPS(target_fabric_wwn, target_fabric_configfs, tf_group); | |
1159 | ||
1160 | static struct configfs_item_operations target_fabric_wwn_item_ops = { | |
1161 | .show_attribute = target_fabric_wwn_attr_show, | |
1162 | .store_attribute = target_fabric_wwn_attr_store, | |
1163 | }; | |
1164 | ||
1165 | TF_CIT_SETUP(wwn, &target_fabric_wwn_item_ops, &target_fabric_wwn_group_ops, NULL); | |
1166 | ||
1167 | /* End of tfc_wwn_cit */ | |
1168 | ||
1169 | /* Start of tfc_discovery_cit */ | |
1170 | ||
1171 | CONFIGFS_EATTR_OPS(target_fabric_discovery, target_fabric_configfs, | |
1172 | tf_disc_group); | |
1173 | ||
1174 | static struct configfs_item_operations target_fabric_discovery_item_ops = { | |
1175 | .show_attribute = target_fabric_discovery_attr_show, | |
1176 | .store_attribute = target_fabric_discovery_attr_store, | |
1177 | }; | |
1178 | ||
1179 | TF_CIT_SETUP(discovery, &target_fabric_discovery_item_ops, NULL, NULL); | |
1180 | ||
1181 | /* End of tfc_discovery_cit */ | |
1182 | ||
1183 | int target_fabric_setup_cits(struct target_fabric_configfs *tf) | |
1184 | { | |
1185 | target_fabric_setup_discovery_cit(tf); | |
1186 | target_fabric_setup_wwn_cit(tf); | |
12d23384 | 1187 | target_fabric_setup_wwn_fabric_stats_cit(tf); |
c66ac9db NB |
1188 | target_fabric_setup_tpg_cit(tf); |
1189 | target_fabric_setup_tpg_base_cit(tf); | |
1190 | target_fabric_setup_tpg_port_cit(tf); | |
12d23384 | 1191 | target_fabric_setup_tpg_port_stat_cit(tf); |
c66ac9db NB |
1192 | target_fabric_setup_tpg_lun_cit(tf); |
1193 | target_fabric_setup_tpg_np_cit(tf); | |
1194 | target_fabric_setup_tpg_np_base_cit(tf); | |
1195 | target_fabric_setup_tpg_attrib_cit(tf); | |
1196 | target_fabric_setup_tpg_param_cit(tf); | |
1197 | target_fabric_setup_tpg_nacl_cit(tf); | |
1198 | target_fabric_setup_tpg_nacl_base_cit(tf); | |
1199 | target_fabric_setup_tpg_nacl_attrib_cit(tf); | |
1200 | target_fabric_setup_tpg_nacl_auth_cit(tf); | |
1201 | target_fabric_setup_tpg_nacl_param_cit(tf); | |
12d23384 | 1202 | target_fabric_setup_tpg_nacl_stat_cit(tf); |
c66ac9db | 1203 | target_fabric_setup_tpg_mappedlun_cit(tf); |
12d23384 | 1204 | target_fabric_setup_tpg_mappedlun_stat_cit(tf); |
c66ac9db NB |
1205 | |
1206 | return 0; | |
1207 | } |